Im in the middle of doing mine with braided. Ive opted for -6 teflon, but im using coated hardline tubing for the underside to replace the standard metal pipes, and fitting the -6 AN fittings onto the ends of the hardline pipes. So the braided section will only be as per the OE rubber lines but teflon with AN fittings on the OE rail. Keeps the cost down a bit and means I can retain the standard fuel line clips under the car as well.